27581248063 has 2 divisors, whose sum is σ = 27581248064. Its totient is φ = 27581248062.

The previous prime is 27581247997. The next prime is 27581248067. The reversal of 27581248063 is 36084218572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27581248063 - 2¹³ = 27581239871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27581248067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13790624031 + 13790624032.

It is an arithmetic number, because the mean of its divisors is an integer number (13790624032).

Almost surely, 2^27581248063 is an apocalyptic number.

27581248063 is a deficient number, since it is larger than the sum of its proper divisors (1).

27581248063 is an equidigital number, since it uses as much as digits as its factorization.

27581248063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 27581248063 in words is "twenty-seven billion, five hundred eighty-one million, two hundred forty-eight thousand, sixty-three".